US1252819A

US1252819A - Type-writing machine.

Info

Publication number: US1252819A
Application number: US3598415A
Authority: US
Inventors: Alfred G F Kurowski
Original assignee: Underwood Typewriter Co
Current assignee: Underwood Typewriter Co
Priority date: 1915-06-24
Filing date: 1915-06-24
Publication date: 1918-01-08
Anticipated expiration: 1935-01-08

Description

mvEm-om ATTOR Y A. G.'F. KUROWSKI.

TYPE wnmus MACHINE.

APPLICATION FILED JUNE 24. 19I5- Patented Jan. 8, 1918.

WITNESSES.

UNITED STATES -IPATEN T OFFICE.

ALFRED G. F. KUROWSKI, 0F BROOKLYN, NEW YORK, ASSIGNOR TO UNDERWOOD TYPE- WRITER COMPANY, OF NEW YORK,

N. Y., A CORPORATION OF DELAWARE.

TYPE-WRITING MACHINE.

Application filed .Tune 24, 1915.

To all /t0), it may ('om'w-rn lie it ln'iown that .l, Anrnnn (i. F. KU- JRUWSKI, a subject of the German Empire, residing in Brooklyn borough, in the county of Kings, city and State of New York, have invented certain new and useful Improvemerits in Type-VVriting Machines, of Which the following is a. specification.

The present invention relates to a device for use in connection with printing and stenciling machines. but more particularly for use in ty1' c'\-vriting machines having rolary platens, to hold ards, labels and the like in position against the platen during the printing or stenciling operation. The relatively small and varying sizes of cards, and the material of which they are commonly composed render a card-holding attachment especially desirable'in typewriting machines; and obviously, facility and security of attachment of the device to the machine and easy adjiustability of the same to different sizes of cards are desirable features in such a device. The manipulation of such a device involves not only its attachment to, and removal from, the machine whenever desired, but also the insertion into and removal of cards from the device when it is so attached, and the adjustment of the card-holding fingers or members to cards of different sizes.

It is an object of the present invention to reduce to a minimum the number of parts and movements involved in manipulating the device; and, in attaining this end, the card-holding plate of the present invention in its preferred form, is pivoted on an at tachment to the platen so as to have a limited rocking movement away from the platen for'the insertion of a card, and a greater rocking movement in the same direction which automatically detaches the device as a unit from the platen, the same parts and movement thus serving both operations, to the great simplification of the device.

A further important feature of the invention is the mechanism by which the device is removably attached and locked to the platen; the locking of the device to the platen being automatic upon mere pressure of the device onto the platen; and its unlocking being equally simple, and due to force exerted in the opposite direction the rocking movement of the card holdingplate, above described. The preferred form Specification of Letters Patent.

Patented Jan. 8, 1918. Serial No. 35,984.

of lock is a. spring clutch; such as a springpressed ball carried by the platen and adapted to engage a shallow recess in the face of the attaching element. Such a lock is entirely efhcient in the present ll'lVCl'ltlOll owing to the novel manner in which the device is carried and sustained against disturbing forces.

In order that the printing area n'iav be well distributed over the platen, and 'un-- equal wear thus avoided, a feature of the invention is a novel support for the Card holding device, whereby the (leviesv may be scciu'cd to the platen at substantially any place in the periphery of the latter.

The card-holding plate has certain novel features, permitting of especially easy adpstment of the same to cards of different sizes, and insuring firm and reliable engagement of the same with the card.

Other features and advantages will here inafter appear.

In the accompanying drawings,

Figure 1 is a perspective view of the platen with the card-holder attached.

Fig. 2 is av perspective view of the cardholder in the position it assumes in being released from the platen.

Fig. 3 is an end view of the platen, with card-holder attached and in position for the insertion of a card.

Fig. 4: is a view similar to that of Fig. 3 except that the card-holder has been lifted to release it from the platen.

Fig. 5 is a perspective view of the inside of the disk on the platen to Which the cardholder is secured. i

Fig. 6 is an end view of the disk shown in Fig. 5, with the cardholder-attaching member in place thereon.

Fig. 7 is a perspective view of the spider which assists in holding together the parts shown in Fig. 6.

Referring to the drawings, the platen 1 is shown as mounted on the shaft 2, journaled in the platen frame 3 a type-bar 4 being shown at the printing point, and the usual pressure rollers 5 and shaft 6 being shown in dotted lines. The platen shaft 2 carries at its ends the hand wheels 7, and also the line-space ratchet wheel 8.

The card-holder (see particularly Fig. 2) comprises a sheet metal plate 9, curved to conform to the curvature of the platen, and carrying two spring metal card-holding fingers 10 and 11, each preferably having a roughened or indented under surface 12 for better gripping of the card. The finger 10 is fixedly attached to the upper surface of" the plate 9 by rivets 13; and both fingers are offset at 1 1 over the edge of the plate 9 to present their car-gripping surfaces at the plane of the card. The finger 11 is ad justable along the plate 9 to accommodate the holder to cards of different widths; and, for this purpose, the plate 9 is slotted at 15 to engage headed guide pins 17 on the finger 11; and, at 16, to engage rivets 18, which also connect the finger 11 with an H-shap ed leaf spring 19. This spring, while permitting easy movement of the finger-piece 11 along the plate, exerts enough pressure thereon to hold the finger-piece against d splacement. The spring, by reason of its length, prevents any rocking of the finger, such as might occur by reason of loose fit of the pins and rivets in the slots, and thus also acts to maintain the gripping surfaces 12, parallel with the face of the platenl or attachment of the card-holder to the platen, the latter has concentrieally secured at one end thereof, by means of screws 20, a disk 21. The inside face of this disk, that is to say, the face thereof which lies against the platen, is channeled to provide pockets 22, shown as six in number, radially disposed around the disk at equi-angular distances apart. From the outer face of the disk there is drilled into each pocket 22 a hole 23, which serves as a seat for the ball 24 of a ball clutch. Secured by screws 25 to the outer face of the disk 21 is a spider 26 having radial spring arms 27, in number equal to the number of pockets 22, and each of which has a conical recess 28 in registration with a ball seat 23 in the disk 21. The bases of the cones formed by the recesses are at that face of the spider which abuts the disk 21; so that each arm of the spider is a spring seat for one of the balls, tending to hold the loall against the end of the platen, but permitting the ball to be forced slightly outward when the part to be held thereby is forced into the corresponding pocket or channel 22. The piece to be engaged and held by the ball clutch is a tongue 29 on a plate 30, to which the cardholder is pivotally connected at 31; and the tongue 29 therefore serves to removably connect the card-holder and the platen. The tongue 29 (see Fig. 6) is of a width and size to permit it to fit snugly in any one of the channels 22. At the endof the tongue on the outside face thereof is a beveled cut 32 which, as the tongue enters the channel, acts as a cam to force the ball outward against the action of its spring-retaining arm 27 The tongue 29 has also a conical recess 33, in its outside face, so that as the tongue is forced home in any channel 22, the recess 33 finally comes into registration with the ball, and

the spring arm of the spider snaps the ball into the recess 33, thereby locking the member 30 to the platen. The taper of the recess 33 is such as to permit withdrawal of the member 30 upon application of reasonable force, without however permitting accidental displacement of that member after the parts are locked. In forcibly Withdrawing the member 30, the tapered wall of the recess 33 acts as a cam to force out the ball in the same manner as the recess 33 at the end of the tongue. The member 30 is curved to the curve of the disk 21, and when the parts are locked, as shown in Fig. 6, overlies the periphery of the disk to provide a firm seat for the cardholder. The ends of the lock plate 30 are cut away at 30 so as not to interfere with the balls in the channels next adjacent the channel in which the holder is locked, and have squared ends 30, which in Fig. 6 position, closely overlie the corners 22 of those channels, thereby providing further rigidity to the seating of the holder.

The card-holder plate 9 has a turned over extension 31 which serves as an arm by means of which the card-holder may be pivotally connected at 31 to the lock plate 30. This turned-over part 84: is extended beyond the pivot 31 to provide a tooth 35, which, in the position of the parts shown in Fig. 6, is removed from the periphery of the disk 21 a distance sufiicient to permit the card-holder to be lifted or rocked up to Fig. 3 position, by means of a finger-piece 36, for the positioning, of a card beneath the card fingers 10 and 11. The tooth 35, by engagement with the periphery of the disk 21, acts as a stop to determine this card-inserting movement of the holder. A spring 37 attached at one end to a pin 38 on the holder, and at the other end to a pin 39 on the lock plate 30, serves to hold the card-holder against the platen, and to return the same to such position when the finger-piece 36 is released after insertion of a card. A stop pin 40 on the lock plate 30, by engagement with the end wall of a recess 41 in the holder extension 34, determines the spring-actuated throw of the card-holder around the lock plate.

The tooth 35 which limits the lifting, or card-inserting, movement of the holder, has also an important function in the removal of the card-holder from the platen. This function is that of a jack or cam to lift the lock tongue 29 out of the lock disk 21. The removal of the holder from the platen is effected by a mere continuation of the lifting movement of the holder in inserting a card. The latter movement, it will be remembered, requires just effort enough to overcome the tension of the spring 37, and is determined when the tooth 35 strikes the edge of the lock disk 21, as shown in Fig. 3. A further effort in the same direction (see Fig. 4') causes the tooth 35 to act as a jack or cam, or more precisely, as part of a lever fulcrumed at the point of contact of the tooth on the lock disk 21 and carrying at 31 the lock plate 30; and this lever action causes the lock plate 30 and all attached parts to be withdrawn from the lock disk 21.

It will therefore be seen that a minimum number of movements, of extreme simplicity, are required in placing, operating, and removing the holder. The multiplication of the number of ball clutches, when in fact but one is used at a time, is that the printing area may be distributed, and unequal wear on the platen be thus avoided.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1.. The combimltion with a platen, of a card-holder comprising a plate opposed to the platen, card-holding fingers mounted on the side of the plate away from the platen but extended beyond the edge of the plate and offset toward the platen for engagement with a card on the latter, one of said fingers having a pin-and-slot engagement with. its supporting plate for adjustment longitudinally of the platen, and a leaf spring on the side of said plate opposite said adjustable finger, and connected with said finger through the slot in the plate to hold the finger in any adjusted position.

2. The combination with a platen, of a card-holder comprising a plate opposed to the platen, card-holding fingers mounted on the side of the plate away from the platen but extended beyond the edge of the plate and offset toward the platen for engagement with a card on the latter, one of said fingers having a pin-and-slot engagement with its supporting plate for adjustment longitudinally of the platen, and a leaf spring extending lengthwise of the slot in the plate on the side of said. plate opposite said adjustable finger and connected with said finger through the slot in the plate to hold the finger in any adjusted position, and to hold the finger with its gripping surface parallel to the face of the platen.

3. The combination with a platen, of a card-holder detachably secured to the platen,

said holder when attached to the platen,-

having a movement thereon to permit of insertion of cards, a stop for limiting said card inserting movement, and means whereby said stop may be used at will to release the holder from the platen.

4. The combination with a platen, of a card-holder detachably secured to the platen, said holder when attached to the platen, having a movement thereon to permit of insertion of cards, a stop for limiting said card inserting movement and means Wherev further effort in the same direction causes said stop automatically to release the holder from the platen.

The combination with a platen, of a card-holder, detachably secured to the platen and being pivotally mounted thereon to be lifted for the insertion of cards, a stop for determining the card-inserting movement of the holder around its pivot, and means whereby suflicient pressure against said stop causes the stop to release the holder from the platen.

6. The combination with a platen, of a card-holder, detachably secured to the platen and being pivotally mounted thereon to be lifted for the insertion of cards, a tooth on the holder, and a surface against which the tooth is swung by said card inserting movement of the holder, to limit said movement, the connection of the holder to the platen being a yielding connection so that further effort to swing the holder around its pivot after the tooth has struck said surface will cause the tooth to act as a lever to force the holder from the platen.

7. The combination with a rotatable platen, of a card holder, a spring clutch, one member of the clutch being carried by the holder and the other by the platen, and the clutch members being positioned to engage each other when in registration, upon move ment of the holder perpendicularly toward the platen axis.

8. The combination with a rotatable platen, of a card holder, a spring clutch, one member of the clutch being carried by the holder and the other by the platen, and the clutch members being positioned to engage each other when in registration, upon movement of the holder perpendicularly to ward the platen axis, said clutch being yielding so that a suflicient pull on the holder will cause the holder to be released from the platen.

9. The combination with a rotatable platen, of a card-holder, a retaining plate on one end of the platen having a radial channel therein, and a projection on the holder adapted to enter and be locked in said channel.

10. The combination with a rotatable platen having a disk fast to one end thereof, of a plate adapted to be seated upon the periphery of said disk, a projection extending from the plate into the edge of the disk for interlocking the two, a clutch for holding said parts interlocked, and a card-holder carried by the plate.

11. The combination with a rotatable platen having a disk fast to one end thereof, of a plate adapted to be seated upon the periphery of said disk, a projection extending from the plate into the ed e of the disk for interlocking the two, a c utch for holding said;.pa.1'ts interlocked, and a card-holder' carried by the plate, said card-holder being movable on the plate to release said clutch.

12. The combination with a rotatable platen havinga disk fast to one end thereof, of a plate adapted to be seated upon the periphery of said disk, a projection extending from the plate into the edge of the disk for interlocking the two, a clutch for holding said parts interlocked, and a card-holder pivoted to the )ltliIO and having a part there of adapted to be swung against the periphery of the disk to lift the plate off the disk.

13. The combination with a rotatable platen having a disk fast to one end thereof,

of a plate adapted to be seated upon the peri 'ihery of said disk, a projection extending from the plate into the edge of the disk for interlocking the two, a clutch for holding said parts interlocked, and a card-holder pivoted to the plate and having a part thereof adapted to be swung against the periphery of the disk, by the movement of the holder on its pivot, to lift the plate oil the disk.

14. The Combination with a rotatable platen having a disk fast to one end thereof. of a. plate adapted to be seated upon the pe riphery of said disk, a projection extending from the plate into the edge of the disk for interlocking the two, a spring-controlled clutch for automatically holding said parts when they are interlocked, and a card-holder carried by the plate.

15. The combination with a rotatable platen having a disk fast to one end thereof, of a card-holder having an attachment comprising a tongue, recessed to receive a ball, and adapted to enter an interior radial chan- Gopies of this patent may be obtained for five cents each, by addressing the nel in said end disk, said disk carrying a ball loosely seated in a hole which extends from the channel to the outer face of the disk, and a spring for holding the ball on its seat and for causing the ball to enter the recess in the tongue to lock the latter to the disk.

16. The combination with a rotatable platen having a disk fast to one end thereof, of a card-holder having an attachment cornprising a tongue, recessed to receive a ball, and adapted to enter an interior radial channel in said end disk, said disk carryin a ball loosely seated in a hole which exten s from the channel to the outer face of the disk, :1. spring for holding the ball on its seat and for causing the ball to enter the recess in the tongue to lock the latter to the disk, and cam surfaces on the tongue to force the ball outward. against the action of the spring when the parts are pressed together or drawn apart with sullieient force.

l7. The crnnbination with a rotatable platen, of a disk last to one end of the platen, said disk having a plurality of inner radial channels, and a hole leadii'ig from the outer face of the disk to each channel, a clutch ball in each hole, a spider attached to the outer face of the disk and having a leaf spring arm crossing each of said holes to retain the balls therein, a card-holder, and a projection on the holder, adapted to be passed into any one of the channels of the disk, and having a ball recess to receive the ball in that channel and so look the holder to the platen.

ALFRED G, F. KUROVVSKI.

Witnesses:

"W. O. VVEsTrHAL, JULIUs DUCKS'IINE.

Gommissioner of Patents,

Washington, D. G.